Open Stack

On 7/25/2014 2:38 PM, Clark Boylan wrote:
> Hello,
>
> The recent release of tox 1.7.2 has fixed the {posargs} interpolation
> issues we had with newer tox which forced us to be pinned to tox==1.6.1.
> Before we can remove the pin and start telling people to use latest tox
> we need to address a new default behavior in tox.
>
> New tox sets a random PYTHONHASHSEED value by default. Arguably this is
> a good thing as it forces you to write code that handles unknown hash
> seeds, but unfortunately many projects' unittests don't currently deal
> with this very well. A work around is to hard set a PYTHONHASHSEED of 0
> in tox.ini files. I have begun to propose these changes to the projects
> that I have tested and found to not handle random seeds. It would be
> great if we could get these reviewed and merged so that infra can update
> the version of tox used on our side.
>
> I probably won't be able to test every single project and propose fixes
> with backports to stable branches for everything. It would be a massive
> help if individual projects tested and proposed fixes as necessary too
> (these changes will need to be backported to stable branches). You can
> test by running `tox -epy27` in your project with tox version 1.7.2. If
> that fails add PYTHONHASHSEED=0 as in
> https://review.openstack.org/#/c/109700/ and rerun `tox -epy27` to
> confirm that succeeds.
>
> This will get us over the immediate hump of the tox upgrade, but we
> should also start work to make our tests run with random hashes. This
> shouldn't be too hard to do as it will be a self gating change once
> infra is able to update the version of tox used in the gate. Most of the
> issues appear related to dict entry ordering. I have gone ahead and
> created https://bugs.launchpad.net/cinder/+bug/1348818 to track this
> work.
>
> Thank you,
> Clark
>
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>

Is this in any way related to the fact that tox is unable to 
find/install the oslo alpha packages for me in nova right now (config, 
messaging, rootwrap) after I rebased on master?  I had to go into 
requirements.txt and remove the min versions on the alpha versions to 
get tox to install dependencies for nova unit tests.  I'm running with 
tox 1.6.1 but not sure if that would be related anyhow.

-- 

Thanks,

Matt Riedemann